The steel Nautilus that carries a pointer date, moonphase, power reserve indicator and small seconds on a deliberately asymmetric dial, driven by the ultra-thin micro-rotor calibre 240. It descends directly from the reference 3712, which Patek Philippe built for only about a year and which introduced that combination of indications to the Nautilus line. The 5712 carried the layout in a 40mm case and stayed in the collection far longer than its short-lived predecessor.
Reference record
Production
2005–2022
Model
Nautilus Power Reserve Moonphase
Case material
Stainless Steel
Case size
40mm
Movement
Automatic
Calibre
Cal. 240 PS IRM C LU
Dial colours
Blue
Market value band
$130k – $220k
Notable
—The dial places the moonphase at seven o'clock and the power reserve indicator at ten thirty.
—The calibre 240 family is roughly 3.98mm thick and holds about 48 hours of power reserve.
What the specification implies
—The 5712 uses the micro-rotor calibre 240 family. The full-rotor calibre 324 belongs to the 5711.
—The date is indicated by a centrally mounted pointer hand, not through a window aperture.
Common questions
When was the Patek Philippe 5712/1A produced?
The 5712/1A was produced from 2005 to 2022.
What movement does the Patek Philippe 5712/1A use?
The Patek Philippe 5712/1A runs the Cal. 240 PS IRM C LU, an automatic movement.
How do I check a Patek Philippe 5712/1A with Watch Safe?
Look up the watch's serial number in the Watch Safe registry to see whether a record exists or a theft flag is attached. A registry search identifies records for a specific serial; it does not authenticate the watch. Authentication is performed in person by an independent expert authenticator, and Watch Safe records and publishes the result.